Today we’ll have an on-air barbeque taste test with two famous pitmasters. Then, the phrase "bird brain" is used as a put-down, but we’ll talk to a leading neurobiologist and a cognitive scientist about the parallels between human and bird brain development. We’ll go an expedition to discover the origins of the universe by using a telescope in a balloon...with filmmaker Paul Devlin and a scientist. And we'll hear the latest on the Iranian elections from Christiane Amanpour in Tehran. Plus, Please Explain is all about bees.